'Slender Man' Stabbing: 911 Call Describes How Victim Was Found

Covered in blood, she had crawled out of the woods when a passerby found her struggling to breathe.

This was the scene described on a newly released 911 call that reveals how a cyclist found a 12-year-old girl on Sunday morning after she was allegedly stabbed by two of her friends.

"Help me, I've been stabbed," the girl said as the man bent down and pulled out his phone to call for help, according to the Los Angeles Times.

"She says she's having trouble breathing," the passerby tells the 911 dispatcher on the call. "She said she was stabbed multiple times … she's laying on the grass … She's awake … she's breathing, she said she can take shallow breaths."

According to court documents, the girls had been planning to kill their friend since December.

"To say it's every parent's worst nightmare is a cliché but it is," Geyser's lawyer, Anthony Cotton, told ABC News. He says the girl should not be tried as an adult and wants the case moved to juvenile court, where the harshest punishment is confinement until the age of 25. If tried as adults they could each face 65 years behind bars.

Geyser's family released a statement Monday. "We wish to express our deepest sympathies and extend our heartfelt prayers to the victim and her family," they said. "We have been overwhelmed with anguish."